Did you know Mars is NOT reddish in color? It’s true. It looks just like earth!!! Mars has earth colored soil and a beautiful blue sky – just like Hawaii!
As one conspiracy website put it –
This is very interesting. It may come as a surprise to many readers that Mars looks very much like Earth. It’s not red or orange – NASA applies a lens to tint the pictures or they release black and white photos… here’s a real color picture of Mars… blue sky and all… it gets to the point where you ask yourself “what does the government not lie about?”
They included this image as proof:
I can’t believe anybody would believe Mars looks like earth. But i’ll push forward simply for the entertainment value and because there is some interesting facts to be learned – stuff i didn’t know. I love everything space related.
Two facts about Mars:
So while the Romans and the Egyptians knew Mars appeared red simply by looking up into the night sky, today’s conspiracists insist our belief that Mars is red is actually a false belief perpetuated by a government coverup.
Maybe i am endowed with an abundance of common sense but couldn’t these conspiracists step outside their mother’s basement, look up into the night sky and see what Mars looks like to the naked eye? I’m just saying.
But i digress …
So i decided to pursue this absurdity to another level. I took the photo featured on the conspiracy website and i decided to find out where it came from. I found the original photo at the NASA website. It really wasn’t hard to find (Even a conspiracist could have found it). I then superimposed the conspiracy picture next to the original NASA photo. The conspiracy photo is on the left, the original NASA image is on the right:
When you adjust the color on your television set, you do so by picking something on the screen that you know should be a certain color (such as grass should be green) and you adjust your set accordingly. This is a form of calibration. You used the color of the grass as a reference point. Instruments that go to Mars also need to be calibrated so that scientists receive accurate information. There has to be a known reference — a calibration target.
The rover’s calibration targets are objects with known properties. For example, the Pancam calibration target. It is in the shape of a sundial and is mounted on the rover deck. Pancam will image the sundial many times during the mission so that scientists can adjust the images they receive from Mars. They use the colored blocks in the corners of the sundial to calibrate the color in images of the martian landscape. Pictures of the shadows that are cast by the sundial’s center post allow scientists to properly adjust the brightness of each Pancam image. Children provided artwork for the sides of the base of the sundial.
This is the same process used by Hollywood movie makers. They use a device called a “clapper board” to mark the beginning of a scene or a “take.” I’m sure you’ve seen this used in the movies. Well, at the top of some clapper boards you will see a rainbow of colors. Like the Pancam calibration target on the Mars rover, the colors along the top of the clapper board provide a known color reference that can be used in post production by movie editors to ensure the colors in the final cut are “true” to what was recorded on the movie set.
Speaking of “true colors,” let’s get back to why NASA would choose to creat “false color” photos along with “true color” photos. It’s really not as mysterious as it might sound. Let’s start with a technical definition of both:
An image is called a “true-color” image when it offers a natural color rendition, or when it comes close to it. This means that the colors of an object in an image appear to a human observer the same way as if this observer were to directly view the object: A green tree appears green in the image, a red apple red, a blue sky blue, and so on.[source]
False color refers to a group of color rendering methods used to display images in color which were recorded in the visual or non-visual parts of the electromagnetic spectrum. A false-color image is an image that depicts an object in colors that differ from those a photograph (a “true-color” image) would show. [source]
Here is a classic example of a false color image: A forward looking infrared (FLIR) camera (the image to the right). By creating a representation of wavelengths normally invisible to the human eye, we are able to discern the different temperatures present in this scene.
But there are a multitude of reasons for creating false images. Sometimes colors are enhanced, or even added, to represent some characteristic in the image, such as chemical composition, velocity, distance or to simply enhance the differences between materials. Have you ever increased the contrast on your television or an image on your computer so you can better discern some detail? You’ve just created your own false image!!
The same goes for the moon and Mars. With both planets being mostly uniform in their respective colors, creating false images can help us distinguish something as simple as peaks and valleys. Here is an example using the moon:
On the left side is the true color image of the far side of our moon, a mosaic constructed from Lunar Reconnaissance Orbiter images. This is what you would see if you were to directly observe the terrain. Given the uniform color it is very difficult, if not impossible, to accurately judge the peaks and valleys.
On the right side is a false color image of the same side of our moon, a topographic map of the altitude of the Moon’s surface obtained by the Clementine orbiter mission (1994). Measurements made with a laser altimiter. Redder areas are higher, blue/purple areas lower. [source] (more Clementine images here)
In this instance a false color image was generated of the moon to provide a clear, visual representation of the lunar topography.
In the false color Mars image used at the conspiracy website, it’s very possible NASA color corrected the image for no other reason than to better distinguish the size, shape and locations of the rocks.
The bottom line is, Mars is reddish in color and the moon appears gray. Period. End of story.
I guess my bigger question concerning this conspiracy is, why would the government have any interest in covering up the real color of Mars or the moon (yes, there is a conspiracy out there that the government is covering up the real color of the moon)? I suspect it has something to do with the belief Mars and the moon are actually inhabitable and the Mars/moon color coverup is part of the government’s alien/UFO coverup.
- Mars Exploration Rover Mission (NASA JPL)
- Spacecraft: Surface Operations: Instruments (NASA JPL)
- The Clementine Mission (Lunar and Planetary Institute)
- False color/True Color (Wikipedia)
- Mars, Facts and Information about the Planet Mars (space.com)
- What Is Mars? (NASA)
- Why does Mars look red from Earth? (NASA)
- Big Picture on Mars: NASA Rover Snaps Amazing Red Planet View (space.com)
- Panoramas: Opportunity (NASA JPL)
- Panoramas: Spirit (NASA JPL)
- Mars Rover “Spirit” Images (NASA)